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Paper Abstract and Keywords
Presentation 2010-02-24 12:40
A study on environmental sensing by bat bio-sonar -- Relationships between sonar beam direction and flight direction during obstacle avoidance --
Naotaro Hirade, Emyo Fujioka, Shizuko Hiryu, Hiroshi Riquimaroux, Yoshiaki Watanabe (Doshisha Univ.) US2009-115
Abstract (in Japanese) (See Japanese page) 
(in English) Bats have high capabilities of avoiding obstacles by echolocation combined with flight performance in complete darkness. In this study, the horizontal direction and sound pressure of emitted pulses from flying FM bats (Miniopterus fuliginosus) during obstacle avoidance in the chamber were measured by using 24-ch microphone array system and telemetry sound recording (Telemike) respectively. As a result, bats decreased sound pressure and repetition rate of emitted pulses refining their flight route by continuing to fly in same obstacle condition. Relationship between sonar beam direction and flight direction of the bats was demonstrated linear control law even in different obstacle complexity.
Keyword (in Japanese) (See Japanese page) 
(in English) Bio-sonar / Inter-Pulse Interval / Gaze / Microphone array / Telemike / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 425, US2009-115, pp. 19-24, Feb. 2010.
Paper # US2009-115 
Date of Issue 2010-02-17 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF US2009-115

Conference Information
Committee US  
Conference Date 2010-02-24 - 2010-02-24 
Place (in Japanese) (See Japanese page) 
Place (in English) TOKYO KEIKI INC. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Acoustic Imaging, General, etc 
Paper Information
Registration To US 
Conference Code 2010-02-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on environmental sensing by bat bio-sonar 
Sub Title (in English) Relationships between sonar beam direction and flight direction during obstacle avoidance 
Keyword(1) Bio-sonar  
Keyword(2) Inter-Pulse Interval  
Keyword(3) Gaze  
Keyword(4) Microphone array  
Keyword(5) Telemike  
1st Author's Name Naotaro Hirade  
1st Author's Affiliation Doshisha University (Doshisha Univ.)
2nd Author's Name Emyo Fujioka  
2nd Author's Affiliation Doshisha University (Doshisha Univ.)
3rd Author's Name Shizuko Hiryu  
3rd Author's Affiliation Doshisha University (Doshisha Univ.)
4th Author's Name Hiroshi Riquimaroux  
4th Author's Affiliation Doshisha University (Doshisha Univ.)
5th Author's Name Yoshiaki Watanabe  
5th Author's Affiliation Doshisha University (Doshisha Univ.)
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Speaker Author-1 
Date Time 2010-02-24 12:40:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2009-115 
Volume (vol) vol.109 
Number (no) no.425 
Page pp.19-24 
Date of Issue 2010-02-17 (US) 

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